5 CFR 841.1005 - State responsibilities.
The State will, in performance of this agreement:
(d) Recognize that, to the extent not prohibited by State laws, records maintained by the State relating to this program are considered jointly maintained by OPM and are subject to the Privacy Act of 1974 ( 5 U.S.C. 552a). Accordingly, the States will maintain such records in accordance with that statute and OPM's implementing regulations at 5 CFR part 297.
(f) Credit the amounts withheld from FERS annuities to the State tax liability of the respective annuitants, and, subject to applicable provisions of State law to the contrary, refund any balance over and above that liability to the annuitant, unless he or she should request otherwise.
(h) Allow OPM, the Comptroller General or any of their duly authorized representatives access to, and the right to examine, all records, books, papers or documents related to the processing of requests for State income tax withholding from FERS annuities.